#include<iostream>
#include<string>
using namespace std;
class Cuboid    //长方体类
{
private:
    int length; //长
    int width;  //宽
    int height; //高
public:
    Cuboid():length(0),width(0),height(0){} //无参构造
    Cuboid(int l,int w,int h){  //三参构造
        if(l>0 && w>0 && h>0){
            cout << "输入成功" << endl;
            length = l;
            width = w;
            height = h;
        }
        else{
            cout << "错误的矩形" << endl;
            length = width = height = 0;
        }
    }
    Cuboid(const Cuboid &c){
        length = c.length;
        width = c.width;
        height = c.height;
    }
    int getArea(){
        return 2*()
    }
};

::(/* args */)
{
}

::~()
{
}

int main()
{
    
}